CN101835641B

CN101835641B - Tyre and flexible member assembly

Info

Publication number: CN101835641B
Application number: CN200880112858XA
Authority: CN
Inventors: C·巴托基奥; B·屈比佐勒
Original assignee: Conception et Developpement Michelin SA; Societe de Technologie Michelin SAS
Current assignee: Compagnie Generale des Etablissements Michelin SCA
Priority date: 2007-10-23
Filing date: 2008-10-23
Publication date: 2013-11-20
Anticipated expiration: 2028-10-23
Also published as: EA201070510A1; BRPI0817797A2; KR20100091186A; JP5530930B2; US8672003B2; BRPI0817797B1; EP2214919A2; WO2009056741A2; EA017759B1; US20100276043A1; FR2922486A1; CN101835641A; WO2009056741A3; JP2011500443A; FR2922486B1; BRPI0817797A8; EP2214919B1

Abstract

The invention relates to an assembly including a tyre (12) and a flexible member (10) attached to the tyre (12), the tyre (12) and the member (10) respectively including complementary linking portions (20, 22), the linking portion (20) of the member (20) being more flexible than the linking portion (22) of the tyre (12).

Description

The assembly of tire and flexible member

Technical field

The present invention relates to the technical field for the tire of power actuated vehicle.

Background technology

Especially be well known that according to document EP1544001A1 in the prior art: a kind of element of being made by rubber is incorporated into the inside face of tire and has formed the supporting that is used for electronics package (for example pressure sensor or temperature sensor).The element of being made by rubber is called as " tyre cushion " sometimes.

Between the used life of tire, tire will bear and accelerate and distortion, and this can weaken being connected of element and tire.Thus, usually can find the local shedding of element or or even come off fully when the end of tire life.

Summary of the invention

Purpose of the present invention especially prevents or postpones this appearance that comes off and the attaching of element on tire strengthened.

Thus, theme of the present invention is a kind of tire and the assembly that is installed to the element on tire, and this tire and element comprise respectively the connecting bridge of interworking, and the connecting bridge of element is more pliable and tougher than the connecting bridge of tire.

By the present invention, when squeegee action, the performance of tire can not destroyed by the element on surface of tyre, and reason is that element self can be at least to deform with the much the same mode of tire.Thus, element can not form the concentrated area of power, this reason that normally element comes off or surface of tyre destroys.Element is strengthened thus to the attaching on tire.

Also can comprise one or more in following feature according to assembly of the present invention.

The connecting bridge that the connecting bridge of-element extension modulus 10% time equals tire at the most extension modulus 10% time.

Ratio between the extension modulus of the connecting bridge of the connecting bridge of-element extension modulus and tire 10% time 10% time equals at most 1 in the wide region of tire working temperature.

From 0 to 80 degree centigrade of the scope of-operating temperature.

The connecting bridge of-tire is formed by the inner rubber of tire.

The connecting bridge of-element is made by rubber, and this rubber is natural or synthetic.

-element comprises for device, the particularly retaining part of electronic type device.

-assembly comprises the connecting material layer that is inserted between connecting bridge, and this layer moves backward or with this peripheral edge, flush from the peripheral edge of element connecting bridge.The connecting material layer comprises for example natural rubber.When articulamentum contacted with air, oxidation can occur in articulamentum, and this can cause the destruction of surface of tyre.Cover articulamentum by the connecting bridge with element, articulamentum does not directly contact with air.Thus, weakened the oxidation of articulamentum, this can extend the service life of the assembly of element and tire.

The border of the peripheral edge of-element is limited by apparent surface's joint line, and described apparent surface is assembling with the angle between 9 to 15 degree (preferably between 10 to 12 degree) on their joint line.The angle on element border is to need the important parameter of considering, thereby make element and being connected of tire, is durable.Especially,, if this angle, less than 9 degree, there will be the crimping on border so, caused during installation thus occurring on the element border risk of fold, this is difficult to suitably flatten.If this angle is greater than 15 degree, the peripheral edge of element rigidity too, thus make the excessive stress of formations on surface of tyre and cause breaking or coming off when rotation.

-element comprises rubber block, the border of this rubber block is limited by two parallel apparent surfaces of cardinal principle, described surface form respectively area supported and with the connecting surface of tire, this rubber block comprises the opening that is arranged on connecting surface, this opening limits the border that is arranged on the recess in rubber block, and this area supported consistently extends with open surfaces at least in part.By with area supported, contacting, described device makes the rubber block hardening and more specifically makes rubber block be positioned at the part hardening consistent with area supported.Because recess, in rubber block, the part of hardening can not contact with tire due to described device.Thus, be positioned at device on area supported or the part consistent with open surfaces that be positioned at of described device and there is no direct mechanical influence for tire.Such result makes the recess of element in the present invention can improve mechanical isolation between described device and tire.

Description of drawings

By reading following description, the present invention will be understood better, and this description provides as just example and with reference to accompanying drawing, wherein:

Fig. 1 is the transparent view according to the element of assembly of the present invention;

Fig. 2 is that element in Fig. 1 is along the section drawing of Fig. 1 midplane II-II;

Fig. 3 is the section drawing when the element in Fig. 1 is installed to tire and keep a device; And

Fig. 4-6th, the amplification sectional view of a plurality of embodiment of element peripheral edge.

The specific embodiment

" modulus of elasticity " of rubber or rubber composition is understood to: in 10% distortion and at ambient temperature or specified temp downward-extension secant modulus; Measure after the circulation of adjusting for the first time that reaches 10% distortion:

E_{10} = \frac{F_{10}}{S \times ϵ_{10}}

Namely

E_{10} = \frac{F_{10} (1 + ϵ_{10})}{S_{0} \times ϵ_{10}}

And

E_{10} = \frac{F_{10} \times 1.1}{S \times 0.1}

ε wherein ₁₀=0.1;

E wherein ₁₀: extend secant modulus during 10% distortion;

F ₁₀: the stretching force during 10% extension;

S ₀: the initial cross-section of test sample book;

S: the cross section of test sample book when extensional ε, in the situation that elastomeric material is well known that:

And

ε ₁₀: the extensional in the time of 10%.

Accompanying drawing has shown the example according to element of the present invention, and this element is applicable to Passenger motor vehicle.This element is by Reference numeral 10 expressions, the supporting that is designed to be installed to tire 12 and is formed for device 14.This device 14 can be polytype, for example electronic type (pressure sensor, temperature sensor, etc.), mechanical type or other type.

Element 10 comprises rubber block 16, and as shown in Figure 3, this rubber block 16 comprises for the part 18 of supporting member 14 and is used for the part 20 that is connected with tire 12.

Part

18 and 20 is made into one and imagine separating of they.Rubber block 16 obtains by molded.

Element 10 is designed to install from the teeth outwards, and is preferably inboard at tire.In Fig. 3, element 10 is installed on the inner sealing rubber 22 of tire 12.Inner rubber 22 has formed the interworking part, is used for being connected with the connecting bridge 20 of element 10.

The border of rubber block 16 is limited by 24, surface for supporting described element 14, and this surface 24 is consisted of the upper surface of supporting part 18.The size of area supported 24 is approximately 15 millimeters * 12 millimeters (mm).The size that is supported the device 14 that supports on surface can be greater than the size of area supported 24, as shown in Figure 3.

The border of rubber block 16 is also limited by 26, the surface that is used for being connected with tire 12, and this surface 26 is relative with area supported 24 and parallel with area supported 24 substantially.Connecting surface 26 is consisted of the lower surface of the connecting bridge 20 of element 10.The size of connecting surface 26 is approximately 40mm * 32mm.

Two

surfaces

24 and 26 are 4mm smooth and separated from one another by approximately substantially.

Element 10 comprises opening 28, and this opening 28 is arranged in connecting surface 26 and defines the border of the recess 30 that is arranged in rubber block 16.Opening 28 is illustrated by the broken lines in Fig. 2.The about 1.5mm of the degree of depth of recess 30.

What can be familiar with is, due to the recess 30 in rubber block 16, so has the transversal plane of at least one imagination in rubber block 16, and this plane is parallel to

apparent surface

24 and 26 substantially, and wherein this cross section of rubber block 16 has the general toroidal shape.

Rubber block 16 is formed and makes area supported 24 consistently extend with the surface of opening 28 at least in part.In other words, the vertical projection of surface 24 on connecting surface 26 limits the border on opening 28 surfaces.

In example shown in Figure 2, the vertical projection (by projection line 36 represented) of area supported 24 on connecting surface 26 coincides with opening 28 substantially.

, due to recess 30, be positioned at consistent with connecting surface 24 in rubber block 16 and can not contact with the inner rubber 22 of tire 12 owing to installing 14 parts with rigidity thus.

Supporting part 18 is connected to connecting bridge 20 by material bridges 38, and this material bridges 38 is connected to the periphery of supporting part 18.These material bridges 38 are not very thick, and for example 4mm is thick, so they are flexible and they allow the relative motions of two

parts

18 and 20, particularly in the situation that tire 12 distortion or install 14 vibrations.So further reinforced tire 12 and the mechanical isolation of device between 14.

Rubber block also comprises passage 32 alternatively, and this channel setting is in the supporting part 18 of rubber block 16 and an end leads to area supported 24 and the other end leads to the bottom of recess 30.This passage can suitably be positioned at device 14 on area supported 24.It can also more easily paste element 10 on tire, avoids simultaneously depositing air in recess 30.Finally, by be arranged on device in channel-like coordinate, this passage allows the fluid communication between recess 30 and inside tires air.Thus, the change of tire pressure or temperature can not cause the difference of pressure between inside tires and recess inside, and this difference of pressure is the root of deformed element.

The rubber that is used to form the connecting bridge 20 of rubber block 16 is that a kind of extension modulus 10% time equals at most tire 12 and extends the rubber of modulus.In other words, connecting bridge 20 is more pliable and tougher than inner rubber 22.As example, be 2.2MPa for inside tires rubber 22 65 ℃ and extension modulus 10% time,, so in order to make element 10, must be chosen to be at the extension modulus of 65 ℃ and equal at most the rubber of 2.2MPa.For the good durability of assembly, the modulus of the rubber of element should the whole range of temperatures when running through tyre rotation in (for example between 0 to 80 degree centigrade) all meet this limiting figure.The rubber that uses can be natural or synthetic.

The connecting bridge 20 of element 10 comprises peripheral edge 40, and the border of this peripheral edge 40 is limited by the joint line 41 between connecting surface 26 and connecting bridge 20 upper surfaces 42.For the purpose of making, and particularly in order during molded, exhaust to be more prone to, but the thickness of joint line 41 is not equal to zero very thin, and size is 0.1 to 0.2mm.In this case, joint line 41 is called as mating surface 41.Two

surfaces

26 and 42 are assembled and formed the angle [alpha] of 9 to 15 ℃ near line 41 between them on joint line 41, be preferably 10 to 12 °.

As shown in Figure 3, element 10 by being inserted in element 10 connecting surface 26 and the connecting material 44 between inner rubber 22 be secured to tire 12.This articulamentum 44 extends on the whole length of connecting surface 26, but not outstanding.In other words, articulamentum 44 flushes with peripheral edge 41.

Preferably, in the zone of peripheral edge 40, the angle [alpha] between two

surfaces

26 and 42 between 10 to 12 degree, described region extension until at a distance of joint line 41 about 7mm apart from d.

Fig. 4 to 6 has shown the amplification sectional view of three embodiment of peripheral edge 40.

In Fig. 4, thus two

surfaces

26 and 42 in conjunction with having formed joint line 41, the thickness that is to say mating surface 41 is zero.

In Fig. 5, the border of peripheral edge 40 is limited by mating surface 41, and this mating surface 41 is 0.1 to 0.2mm perpendicular to surface 26 and thickness a size.

In Fig. 6, peripheral edge 40 comprises string section 47, and this string section 47 has square-section and at 0 (in Fig. 5), extends on the distance 1 between about 1.5mm.

The existence of string section 47 and mating surface 41 can make the die venting of making element more easily.Can also use the exhausr port of other position and keep geometric configuration as shown in Figure 4.

Fig. 4 to 6 has also shown the connection rubber layer 44 that arranges against connecting surface 26, and this connection rubber layer has the thickness b of 0.3mm size.This connection rubber layer stops and can not exceed string section or connecting surface or joint line at peripheral edge.

Finally, the present invention is not limited to above-mentioned example, and reason is can adopt all geometric configuratioies, there is no recess and a plurality of recesses are set in rubber block 16 in rubber block 16 for the supporting part that installs.

Claims

a tire (12) be installed to the assembly of the element (10) of described tire (12), wherein, described tire (12) and described element (10) comprise respectively the connecting bridge (20 of interworking, 22), described element also comprises for the retaining part of electronics package (14) (18), described retaining part (18) is integral and with described connecting bridge (20), forms single rubber block with the connecting bridge (20) of described element (10), the connecting bridge (22) that the connecting bridge (20) of described element (10) extension modulus 10% time equals described tire (12) at the most extension modulus 10% time.
2. assembly as claimed in claim 1, it is characterized in that, the ratio between the extension modulus of the connecting bridge (22) of the connecting bridge (20) of described element (10) extension modulus and described tire (12) 10% time 10% time equals at most 1 in the wide region of the operating temperature of described tire.
3. assembly as claimed in claim 2, is characterized in that, from 0 to 80 degree centigrade of described working temperature range.
4. described assembly as arbitrary in aforementioned claim, is characterized in that, the connecting bridge (22) of described tire (12) is formed by the inner rubber (22) of described tire (12).
5. described assembly as arbitrary in aforementioned claim, is characterized in that, the connecting bridge (20) of described element (10) is made by rubber.
6. described assembly as arbitrary in aforementioned claim, is characterized in that, described device (14) is the electronic type device.
7. described assembly as arbitrary in aforementioned claim, it is characterized in that, comprise and be inserted in described connecting bridge (20,22) the connecting material layer (44) between, described connecting material layer (44) moves backward or with described peripheral edge, flushes from the peripheral edge (40) of the connecting bridge (20) of described element (10).
8. described assembly as arbitrary in aforementioned claim, is characterized in that, described connecting material layer comprises natural rubber.
9. described assembly as arbitrary in aforementioned claim, it is characterized in that, the border of the peripheral edge (40) of described element (10) is by apparent surface (26,42) joint line (41) limits, and described apparent surface is upper with angle (α) convergence between 9 to 15 degree at their joint line (41).
10. described assembly as arbitrary in aforementioned claim, it is characterized in that, described element (10) comprises rubber block (16), the border of described rubber block is by two apparent surfaces (24 that cardinal principle is parallel, 26) limit, described surface form respectively area supported (24) and with the connecting surface (26) of tire (12), described rubber block (16) comprises the opening (28) that is arranged in connecting surface (26), described opening limits the border that is arranged on the recess (30) in described rubber block (16), described area supported (24) consistently extends with described opening (28) surface at least in part.
11. assembly as claimed in claim 9, is characterized in that, described apparent surface is upper with angle (α) convergence between 10 to 12 degree at their joint line (41).
12. assembly as claimed in claim 5, is characterized in that, described rubber is synthetic or natural rubber.